diff --git a/arch/arm/mach-omap2/board-rx51-peripherals.c b/arch/arm/mach-omap2/board-rx51-peripherals.c
index cf6f12e..25a273d 100644
--- a/arch/arm/mach-omap2/board-rx51-peripherals.c
+++ b/arch/arm/mach-omap2/board-rx51-peripherals.c
@@ -186,7 +186,7 @@
 }
 #endif /* CONFIG_KEYBOARD_GPIO || CONFIG_KEYBOARD_GPIO_MODULE */
 
-static int board_keymap[] = {
+static uint32_t board_keymap[] = {
 	/*
 	 * Note that KEY(x, 8, KEY_XXX) entries represent "entrire row
 	 * connected to the ground" matrix state.